Aaron Harnly has taken an “all-too-welcome distraction from pressing schoolwork” to update his widescreen plugin Letterbox.
He has released the new version as a public beta.
It comes with a stand-alone plugin manager for Mail.app that can inspect, enable, disable, install and remove any Mail plugin:
The new version also features a preference pane with options to tweak the display, by toggling on and off the horizontal lines and/or different coloured backgrounds for items in the middle pane. The preview pane can be set to display on the right or underneath (an option to display the pane on the left has been switched off until some problems are resolved):
It comes with an auto-updater and Aaron promises that a two-line column for the middle pane (Ã la WideScreenMail, the other Leopard-friendly wide-screen plugin) is on the way.
It is a public beta so can expect a few minor kinks that still to be ironed out. Pick it up from Aaron’s web site.